001 /*
002 GRANITE DATA SERVICES
003 Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004
005 This file is part of Granite Data Services.
006
007 Granite Data Services is free software; you can redistribute it and/or modify
008 it under the terms of the GNU Library General Public License as published by
009 the Free Software Foundation; either version 2 of the License, or (at your
010 option) any later version.
011
012 Granite Data Services is distributed in the hope that it will be useful, but
013 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015 for more details.
016
017 You should have received a copy of the GNU Library General Public License
018 along with this library; if not, see <http://www.gnu.org/licenses/>.
019 */
020
021 package org.granite.builder;
022
023 import java.util.Iterator;
024
025 import org.eclipse.core.resources.IProject;
026 import org.eclipse.core.resources.IProjectDescription;
027 import org.eclipse.core.runtime.CoreException;
028 import org.eclipse.core.runtime.IAdaptable;
029 import org.eclipse.jface.action.IAction;
030 import org.eclipse.jface.viewers.ISelection;
031 import org.eclipse.jface.viewers.IStructuredSelection;
032 import org.eclipse.ui.IObjectActionDelegate;
033 import org.eclipse.ui.IWorkbenchPart;
034
035 /**
036 * @author Franck WOLFF
037 */
038 public class ToggleNatureAction implements IObjectActionDelegate {
039
040 private ISelection selection;
041
042 @Override
043 public void run(IAction action) {
044 if (selection instanceof IStructuredSelection) {
045 for (Iterator<?> it = ((IStructuredSelection)selection).iterator(); it.hasNext(); ) {
046 Object element = it.next();
047
048 IProject project = null;
049 if (element instanceof IProject)
050 project = (IProject)element;
051 else if (element instanceof IAdaptable)
052 project = (IProject)((IAdaptable)element).getAdapter(IProject.class);
053
054 if (project != null)
055 toggleNature(project);
056 }
057 }
058 }
059
060 @Override
061 public void selectionChanged(IAction action, ISelection selection) {
062 this.selection = selection;
063 }
064
065 @Override
066 public void setActivePart(IAction action, IWorkbenchPart targetPart) {
067 }
068
069 public static void toggleNature(IProject project) {
070 try {
071 IProjectDescription description = project.getDescription();
072 String[] natures = description.getNatureIds();
073
074 for (int i = 0; i < natures.length; ++i) {
075 if (GraniteNature.NATURE_ID.equals(natures[i])) {
076 // Remove granite nature
077 String[] newNatures = new String[natures.length - 1];
078 System.arraycopy(natures, 0, newNatures, 0, i);
079 System.arraycopy(natures, i + 1, newNatures, i, natures.length - i - 1);
080 description.setNatureIds(newNatures);
081 project.setDescription(description, null);
082 return;
083 }
084 }
085
086 // Add granite nature
087 String[] newNatures = new String[natures.length + 1];
088 System.arraycopy(natures, 0, newNatures, 0, natures.length);
089 newNatures[natures.length] = GraniteNature.NATURE_ID;
090 description.setNatureIds(newNatures);
091 project.setDescription(description, null);
092 } catch (CoreException e) {
093 }
094 }
095 }